
B–63683EN/01
5. TOOL FUNCTION (T FUNCTION)
79
By specifying an up to 8–digit numerical value following address T, tools
can be selected on the machine.
One T code can be commanded in a block. Refer to the machine tool
builder’s manual for the number of digits commandable with address T
and the correspondence between the T codes and machine operations.
When a move command and a T code are specified in the same block, the
commands are executed in one of the following two ways:
(i) Simultaneous execution of the move command and T function
commands.
(ii)Executing T function commands upon completion of move command
execution.
The selection of either (i) or (ii) depends on the machine tool builder’s
specifications. Refer to the manual issued by the machine tool builder
for details.
The selection of either (i) or (ii) depends on the machine tool builder’s
specifications. Refer to the manual issued by the machine tool builder for
details.
The T command must be given without fail to the block before a block
where punching is first made by press motion in one program or to the
same block where punching is first made by press motion.
If the T command is not given to these blocks, the press start signal which
instructs “Punch by press motion”, is not sent to the machine, and
machining does not proceed to the next block.
O1000G92 ;. . . . . .
N1G00G90X__Y__;
. . . . . . . . .
. . . . . . . . .
Punching should be made in N1 block.
However, since no T command is given to a block before N1 block or N1
block, no punching is made, and machining does not proceed to the next
block.
5.1
TOOL SELECTION
FUNCTION
Examples